Paper tray for a printer



FIG. 1 is a top plan view of a paper tray for a printer showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a paper tray for a printer, as shown and described. 